No. Measuring is getting an exact length. Estimating is guessing what the length is
No, it is not. Estimating may be rounding but need not be.
Estimating one of them is equivalent to estimating the other.
An equilateral triangle is a triangle with all sides & angles having the same measure.An isosceles triangle is a triangle with 2 sides & angles measuring the same, leaving one angle/side to be different.A scalene triangle is a triangle with no sides and/or angles measuring the same length.
why might you need to measure a perimeter with a measuring tape insteadof a ruler.
One strategy is estimating the factors the other i don't know
benchmark fractions
No, it is not. Estimating may be rounding but need not be.
For measuring distance, meter is used. For measuring mass, kilogram is used. For estimating time, second is used.
They are not.
They can be used in estimating the age of an object by measuring its half lifes.
Because it is more accurate.
sampling
An article on cost estimating in the building construction field, admittedly from an out dated source although the principles are still the same, is at http://www.inquirewithin.biz/Vol2/Estimating/estimating_foundations.htm.
You learn how to cut safely and accurately, you learn how to hammer properly, you learn effective ways of estimating and measuring.
Carbon Dating.
Normally when estimating quotients you should round both numbers in the same direction whereas for products you should round the two numbers in opposite directions.
estimating about 5000